package com.woniuxy01;

class Ddd{
    public final void test01(){
        System.out.println("Ddd test01");
    }
}
class Eee extends Ddd{
//    @Override
//    public void test01(){
//        System.out.println("Eee test01");
//    }
}

//final class Fff{
//
//}
//
//class Ggg extends Fff{
//
//}

public class Test03 {
    public static void main(String[] args) {
        int i=1;
        i=6;

        final int j=1;
        System.out.println(j);
//        j=5;
        final int m;
        m=5;
//        m=9;

        double pi=3.14;
        System.out.println(pi*2*3);
//        Xxx.PI=3.24;
        System.out.println(Xxx.PI*2*3);
        System.out.println(Math.PI*2*3);

    }
}
